| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e9445e5e3626f36e932c6451a928250 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2602-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-57
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-324
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-323
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-56 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-57 |
| filingDate |
1974-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1977-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CH-589614-A5 |
| titleOfInvention |
Sulphonated distyryl benzenes prodn - by condensing 4-methylstilbenes and sulphoanils in presence of strong base |
| abstract |
Preparing 1,4-distyrylbenzenes (I) comprises reacting a 4-methyl stilbene (II) with anil (III) in presence of a strongly basic alkali cpd. in a strongly polar neutral-to-basic org. solvent. (rings, A, B, and C are opt. substd. by nonchromophoric gps. and 1 of A and C has a SO3M substit M=H or salt-forming cation; ring A can also represent naphthalene; Ar=opt. substd. aryl). Yields of (I) are food. (I) are optical brighteners for high mol. wt. org. materials e.g. for incorporation into detergent compsns or spinning melts. |
| priorityDate |
1974-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |